https://www.lrsoc.com/forum/forum_files/ServiceNewsletter51.pdf Service Newsletter No 51 – January 1955
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter50.pdf Service Newsletter No 50 – November 1954
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter49.pdf Service Newsletter No 49 – October 1954
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter48.pdf Service Newsletter No 48 – September 1954
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter47.pdf Service Newsletter No 47 – August 1954
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter43.pdf Service Newsletter No 43 – April 1954
https://www.lrsoc.com/forum/forum_files/ServiceNewsletter42.pdf Service Newsletter No 42 – March 1954
